PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21105-850-1Sleeve and Slide,directional Con

Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace · NSN 4820-01-410-8851 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-410-8851 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-410-8851. Primary manufacturer part number: 21105-850-1.
Features
  • Sleeve and Slide,directional Con — FSC 4820
  • Sleeve Material: STEEL
  • Valve Design Control Activity: 78062
  • Slide Material: STEEL
  • 13 verified cross-references
  • Primary manufacturer: Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

The Sleeve and Slide,directional Con, cataloged under National Stock Number 4820-01-410-8851, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-410-8851
Primary Part Number21105-850-1
Item NameSleeve and Slide,directional Con
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerSargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
StatusACTIVE
Sleeve MaterialSTEEL
Valve Design Control Activity78062
Slide MaterialSTEEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
1630-00-373-77071359-536817M INTERCHANGEABLE
Valve,transfer
Parker Hannifin Corporation Div Aerospace Group Headquarters
6625-00-771-5650HSI INTERCHANGEABLE
Ammeter
Jewell Instruments Llc
5962-01-444-1454211543 INTERCHANGEABLE
Microcircuit,memory
Northrop Grumman Systems Corporation
Cross-Reference Index
Part NumberManufacturer
21837-FIND NO-3 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21828 FIND 2 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21828 FIND 3 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21154-3 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21827 FIND 3 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21105-850-1 PRIMARY Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21147-001 FIND NO 3 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21107 FIND 18 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21172 FIND 4 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21105 FIND 4 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21348 FIND 2 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21837 FIND 3 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21825 FIND 13 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
Related Parts
1630-00-373-7707INTERCHANGEABLE
VALVE,TRANSFER
1359-536817M
6625-00-771-5650INTERCHANGEABLE
AMMETER
HSI
5962-01-444-1454INTERCHANGEABLE
MICROCIRCUIT,MEMORY
211543

Frequently Asked Questions

What is NSN 4820-01-410-8851?

NSN 4820-01-410-8851 is a Sleeve and Slide,directional Con, manufactured by Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-410-8851?

NSN 4820-01-410-8851 has 13 cross-referenced part numbers: 21837-FIND NO-3 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 21828 FIND 2 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 21828 FIND 3 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 21154-3 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 21827 FIND 3 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace) and 8 more.

What NSN replaces 4820-01-410-8851?

There are 3 known substitutes for 4820-01-410-8851: 1630-00-373-7707, 6625-00-771-5650, 5962-01-444-1454. Verify interchangeability with system specifications before substitution.

What are the specifications of 21105-850-1?

Key specifications for 21105-850-1: Sleeve Material: STEEL; Special Features: NITSTEEL MIL-S-6709; Valve Design Control Activity: 78062; Slide Material: STEEL. 4 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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